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        <h1><a href="index.html">All files</a> depanalyze.ts</h1>
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            <div class='fl pad1y space-right2'>
                <span class="strong">89.82% </span>
                <span class="quiet">Statements</span>
                <span class='fraction'>309/344</span>
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            <div class='fl pad1y space-right2'>
                <span class="strong">63.63% </span>
                <span class="quiet">Branches</span>
                <span class='fraction'>28/44</span>
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            <div class='fl pad1y space-right2'>
                <span class="strong">100% </span>
                <span class="quiet">Functions</span>
                <span class='fraction'>12/12</span>
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            <div class='fl pad1y space-right2'>
                <span class="strong">89.82% </span>
                <span class="quiet">Lines</span>
                <span class='fraction'>309/344</span>
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            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">import GraphByAdjacencyList from './graph';
import path from 'path';
import fs from 'fs';
import {
    getLocalDepConfObj,
    getGlobalDepConfObj,
    DepConfObj,
    dependencyInit,
    getDepPkgVerList,
    DepPkgVer,
} from './utils';
&nbsp;
export default class DepAnalyze {
    // 依赖关系
    private depGraph: GraphByAdjacencyList;
    // 依赖关系的深度
    private depth: number;
    // 依赖关系的入口
    private entryPackage: string;
&nbsp;
    private entryVersion: string;
    // 是否存在循环依赖
    private isCircle: boolean;
    // 循环依赖项列表
    private circcleDepList: object[];
&nbsp;
    private allDepList: string[];
&nbsp;
    private visited: boolean[];
    // 是否存在多个不同版本的包
    private isExistMulPack: boolean;
    // 多个不同版本的包的列表
    private mulPackList: object[];
    // 辅助队列
    private helpQueue: string[];
&nbsp;
    private isLocal: boolean;
&nbsp;
    private getDepConfigObj: (
    entryPackage: string,
    entryVersion: string,
  ) =&gt; DepConfObj;
&nbsp;
    private isExecInit: boolean;
    private isExecLoad: boolean;
&nbsp;
    constructor() {
        this.depGraph = new GraphByAdjacencyList();
        this.depth = 0;
        this.entryPackage = '';
        this.entryVersion = '';
        this.isCircle = false;
        this.circcleDepList = [];
        this.isExistMulPack = false;
        this.mulPackList = [];
        this.helpQueue = [];
        this.allDepList = [];
        this.visited = [];
        this.isLocal = true;
        this.getDepConfigObj = getLocalDepConfObj;
        this.isExecInit = false;
        this.isExecLoad = false;
    }
&nbsp;
    init(isLocal = true) {
        dependencyInit();
        this.isLocal = isLocal;
        this.getDepConfigObj = isLocal ? <span class="branch-0 cbranch-no" title="branch not covered" >getLocalDepConfObj : getGlobalDepConfObj;</span>
        this.isExecInit = true;
    }
&nbsp;
    load(entryPackage: string, entryVersion: string, depthLimited: number) {
        if (!this.isExecInit) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            throw new Error('请先执行init方法，初始化环境');</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        this.isExecLoad = true;
        this.clear();
        this.entryPackage = entryPackage;
        this.entryVersion = entryVersion;
        this.readDepsGraph(entryPackage, entryVersion, depthLimited);
        this.hasMulPack();
    // this.depth += 1;
    // console.log(this.toObject());
    }
&nbsp;
    clear() {
        this.depGraph = new GraphByAdjacencyList();
        this.depth = 0;
        this.entryPackage = '';
        this.entryVersion = '';
        this.isCircle = false;
        this.circcleDepList = [];
        this.isExistMulPack = false;
        this.mulPackList = [];
        this.helpQueue = [];
        this.allDepList = [];
        this.visited = [];
    }
&nbsp;
    // 获取入口模块的依赖图
    // 深度优先遍历
    private readDepsGraph(ep: string, ev: string, depthLimited: number) {
        if (depthLimited &lt;= 0) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            return;</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        // 获取该模块对应版本的依赖对象{name:ep, version:ev, dependencies:{}}
        const depConfObj: DepConfObj = this.getDepConfigObj(ep, ev);
        // 构造节点 name&amp;version
        const node: string = depConfObj.name + '&amp;' + depConfObj.version;
&nbsp;
        // 添加节点
        this.depGraph.addNode(node);
        if (!this.allDepList.includes(node)) {
            this.allDepList.push(node);
        }
        this.helpQueue.push(node);
        this.depth =
      this.helpQueue.length &gt; this.depth ? this.helpQueue.length : this.depth;
        this.visited[this.allDepList.indexOf(node)] = true;
        depthLimited = depthLimited - 1;
        if (depthLimited &lt;= 0) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            this.helpQueue.pop();</span>
<span class="cstat-no" title="statement not covered" >            return;</span>
<span class="cstat-no" title="statement not covered" >        }</span>
&nbsp;
        // 检测是否为叶子节点
        if (depConfObj.dependencies === undefined) {
            this.helpQueue.pop();
            return;
        }
        // 如果该模块有依赖对象，则遍历依赖对象，将每个依赖添加为节点，且添加该模块节点的邻接表
        const deps: Map&lt;string, string&gt; = new Map(
            Object.entries(depConfObj.dependencies),
        );
        let depName: string = '';
        let verName: string = '';
        let depConfObj1: DepConfObj;
        let depNode: string = '';
        for (depName of deps.keys()) {
            verName = deps.get(depName) as string;
&nbsp;
            depConfObj1 = this.getDepConfigObj(depName, verName) as DepConfObj;
            depNode = depConfObj1.name + '&amp;' + depConfObj1.version;
            this.depGraph.addNode(depNode);
            if (!this.allDepList.includes(depNode)) {
                this.allDepList.push(depNode);
            }
            this.depGraph.addEdge(node, depNode);
        }
        // const i:number = 0;
        for (
            let w: string = this.depGraph.getFirstNeighbor(node) as string;
            w !== undefined;
            w = this.depGraph.getNextNeighbor(node, w) as string
        ) {
            // 即将遍历w节点
            // 解决循环依赖问题
            if (this.helpQueue.includes(w)) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >                this.isCircle = true;</span>
<span class="cstat-no" title="statement not covered" >                const startIndex = this.helpQueue.indexOf(w);</span>
<span class="cstat-no" title="statement not covered" >                this.helpQueue.push(w);</span>
<span class="cstat-no" title="statement not covered" >                const circleDep = this.helpQueue.slice(startIndex);</span>
<span class="cstat-no" title="statement not covered" >                this.circcleDepList.push(circleDep);</span>
<span class="cstat-no" title="statement not covered" >                this.helpQueue.pop();</span>
<span class="cstat-no" title="statement not covered" >                continue;</span>
<span class="cstat-no" title="statement not covered" >            }</span>
&nbsp;
            // 解决多次访问一个节点的问题
            if (!this.visited[this.allDepList.indexOf(w)]) {
                this.readDepsGraph(
          w.split('&amp;').at(0) as string,
          w.split('&amp;').at(1) as string,
          depthLimited,
                );
            }
        }
        this.helpQueue.pop();
    }
    // // 层次遍历
    // // --depth
    // getOrderedDepthGraph(depth:number):GraphByAdjacencyList{
    //     if(!this.isExecInit || !this.isExecLoad){
    //         throw new Error("请先调用init和load方法");
    //     }
    //     if(depth &gt;= this.depth || depth &lt; 0){
    //         depth = this.depth;
    //     }
    //     let orderedDepthGraph:GraphByAdjacencyList = new GraphByAdjacencyList();
    //     let entryNode:string = this.entryPackage + "&amp;" + this.entryVersion;
    //     orderedDepthGraph.addNode(entryNode);
    //     depth -= 1;
    //     this.helpQueue.push(entryNode);
    //     while(this.helpQueue.length !== 0 &amp;&amp; depth &gt; 0){
    //         let len = this.helpQueue.length;
    //         for(let i=0;i&lt;len;i++){
    //             const depNode = this.helpQueue.pop() as string;
    //             this.depGraph.getNeighbors(depNode)?.forEach((item, index)=&gt;{
    //                 if(this.helpQueue.indexOf(item) &lt; 0){
    //                     this.helpQueue.push(item);
    //                 }
    //                 orderedDepthGraph.addNode(item);
    //                 orderedDepthGraph.addEdge(depNode, item);
&nbsp;
    //             });
    //         }
    //         depth -= 1;
    //     }
    //     if(!this.isExecInit || !this.isExecLoad){
    //         throw new Error("请先调用init和load方法");
    //     }
    //     return orderedDepthGraph;
    // }
&nbsp;
    getDepth(): number {
        if (!this.isExecInit || !this.isExecLoad) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            throw new Error('请先调用init和load方法');</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        return this.depth;
    }
&nbsp;
    hasCircleDep(): boolean {
        if (!this.isExecInit || !this.isExecLoad) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            throw new Error('请先调用init和load方法');</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        return this.isCircle;
    }
&nbsp;
    hasMulPack(): boolean {
        if (!this.isExecInit || !this.isExecLoad) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            throw new Error('请先调用init和load方法');</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        let nodes: string[] = this.depGraph.getNodes();
        const pNodes: string[] = [];
        if (nodes.length &lt; 2) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            return this.isExistMulPack;</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        nodes = nodes.sort();
        nodes.forEach((item) =&gt; {
            pNodes.push(item.split('&amp;').at(0) as string);
        });
        let startPos: number = 0;
        for (let i = 1; i &lt; pNodes.length; i++) {
            if (pNodes[startPos] !== pNodes[i]) {
                if (i - startPos &gt;= 2) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >                    this.mulPackList.push(Array.from(nodes.slice(startPos, i)));</span>
<span class="cstat-no" title="statement not covered" >                }</span>
                startPos = i;
            }
        }
        this.isExistMulPack = this.mulPackList.length &gt; 0;
        return this.isExistMulPack;
    }
&nbsp;
    getDepList(): string[] {
        const depList: DepPkgVer[] = getDepPkgVerList();
        const depsString: string[] = [];
        for (const index in depList) {
            // const dep = depList[index];
            depsString.push(
                `${depList[index]['packageName']}:${depList[index].version}`,
            );
        }
        depsString.sort();
        return depsString;
    }
&nbsp;
    toObject(): object {
    // console.log(this.depGraph);
        if (!this.isExecInit || !this.isExecLoad) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            throw new Error('请先调用init和load方法');</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        const links: object[] = [];
        const mapNodes: Map&lt;string, number&gt; = new Map();
        mapNodes.set(`${this.entryPackage}&amp;${this.entryVersion}`, 0);
        for (const source of this.depGraph.getNodes()) {
            for (const target of this.depGraph.getNeighbors(source) as string[]) {
                links.push({ source, target });
                if (mapNodes.has(target)) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >                    mapNodes.set(target, (mapNodes.get(target) as number) + 1);</span>
                } else {
                    mapNodes.set(target, 1);
                }
            }
        }
        const nodes: object[] = Array.from(mapNodes, ([key, val]) =&gt; {
            return { name: key, count: val };
        });
        return {
            entryPackageName: this.entryPackage,
            entryVersion: this.entryVersion,
            nodeCount: this.allDepList.length,
            nodes: nodes,
            links: links,
            depth: this.depth,
            isCircle: this.isCircle,
            circleDepList: this.circcleDepList,
            isMulPackage: this.isExistMulPack,
            mulPackageList: this.mulPackList,
        };
    }
&nbsp;
    toSimpleObject(): object {
        if (!this.isExecInit || !this.isExecLoad) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            throw new Error('请先调用init和load方法');</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        return {
            entryPackageName: this.entryPackage,
            entryVersion: this.entryVersion,
            nodeCount: this.allDepList.length,
            depth: this.depth,
            isCircle: this.isCircle,
            circleDepList: this.circcleDepList,
            isMulPackage: this.isExistMulPack,
            mulPackageList: this.mulPackList,
        };
    }
&nbsp;
    save(filePath: string = './data/depanalyze.json') {
        if (!this.isExecInit || !this.isExecLoad) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            throw new Error('请先调用init和load方法');</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        const parentPath: string = path.resolve(filePath, '..');
        if (!fs.existsSync(parentPath)) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >            fs.mkdirSync(parentPath);</span>
<span class="cstat-no" title="statement not covered" >        }</span>
        fs.writeFile(filePath, JSON.stringify(this.toObject()), function (err) {
            if (err) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" >                console.log(err);</span>
            } else {
                console.log('保存成功');
            }
        });
    }
}
&nbsp;
// const depAnalyze = new DepAnalyze();
// depAnalyze.init();
// // "acorn", "8.10.0" 1
// // "glob", "10.3.3"
// // "express","4.18.2"
// depAnalyze.load("packagedepgraph", "1.0.0", 8);
// console.log(depAnalyze.toSimpleObject());
// depAnalyze.save();
// console.log("first");
&nbsp;</pre></td></tr></table></pre>

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